Carbon Steel Manual Lug-Type Knife Gate Valve

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Carbon Steel Manual Lug-Type Knife Gate Valve

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Product Description

Introduction:
The knife gate valve boasts advantages such as simple and compact structure, rational design, lightweight material-saving construction, reliable sealing, easy and flexible operation, small size, smooth flow path, low flow resistance, light weight, simple installation, and convenient disassembly. It effectively addresses common issues found in conventional gate valves, including excessive weight and difficult installation.

This valve can serve as a replacement for general-purpose shut-off valves and control valves, operating reliably under working pressures of 1.0MPa-2.5MPa and temperatures ranging from -29°C to 550°C.

Structural Advantages

Lug-Type Design

Symmetrical lugs on both sides: Allows direct bolting to pipeline flanges without additional flanges, saving installation space and costs.
Single-side disassembly: Enables valve maintenance or replacement without disrupting the entire pipeline system.
Compact and lightweight: Simpler structure and lighter weight compared to traditional gate valves, ideal for space-constrained applications.

Sealing Performance

Bidirectional sealing: Utilizes elastic seats or metal + soft sealing combinations to ensure tight shutoff in both flow directions.
Resistance to particulate wear: The wedge-shaped knife gate cuts through fibrous, granular, or viscous media (e.g., sludge, slurries), preventing clogging.

Product Parameters

Size	DN50 - DN1200 (2" - 48")
Pressure	PN6 ~ PN40
Media	High-viscosity media containing solid particles or fibers—Mining slurry, sewage sludge, Pulp and chemical suspensions
Operation	Hand wheel, Worm wheel, Pneumatic, Electric

Detailed Photos

Frequently Asked Questions

What are the primary applications for this knife gate valve?

It is ideal for high-viscosity media containing solid particles or fibers, such as mining slurry, sewage sludge, paper pulp, and various chemical suspensions.

What is the benefit of the Lug-Type design?

The lug-type design allows for direct bolting to pipeline flanges, which saves space and costs. It also supports single-side disassembly for easier maintenance.

Can this valve handle high temperatures?

Yes, the valve is designed to operate reliably in temperature ranges from -29°C up to 550°C.

Does the valve provide a bidirectional seal?

Yes, it utilizes elastic seats or metal/soft sealing combinations to ensure a tight shutoff in both flow directions.

What operation methods are available?

The valve can be operated manually via hand wheel or worm wheel, or automatically through pneumatic and electric actuators.

How does the valve prevent clogging with viscous media?

The wedge-shaped knife gate is specifically designed to cut through thick or fibrous materials, ensuring a smooth flow and preventing clogs.